it's d.
step-by-step explanation:
because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.
then you would get: -4x - 1y + 2x -6y combine like terms
and get: 2x -7y
hope my answer has you if not then i'm sorry.
graph using a few selected
x y
-1 15
0 6
1 2.4
2 0.96
54/3 is 18 so 18 is your answer